Automatic sand-sifter and mortar-mixer.



- YPATBNTBYD JAN; 31,. 1905.. P. B. & A.'O. QUADE. v AUTOMATIG SAND SIF'IIER AND MORTAR MIXER.

APPLIOATIMWIILED JULY 7, 1 904.

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I PATENTED JAN. 31, 1905. P.4B. & A. o; QUADE. AUTOMATIC SAND SIFTER AND MORTAR MIXER.

Nd. 781,457; Q

.- APPLICATION nun JULY '1, 1.904.

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UNITED STATES Patented January 31, 1905.

PATENT OFFICE.

PAUL B. QUADE AND AUGUST 0. UADE, or ATHENS, WISCONSIN, ASSIGNORS or ONE-HALF, TO FRANK oHEsAK AND HERMAN B. ESSELMAN, or ATHENS,-WISGONS1N.

AUTOMATIC SAND-SIFTER- AND MORTAR-MIXER.

SPECIFICATION forming part of Letters Patent No. 781,457,:dated January 31, 1905. Application filed July '7, 1904. Serial No. 215,611.

To all whom it may concern:

Be it known that we, PAUL B. QUADE and AUGUST 0. QUADn, citizens of the United States, residing at Athens, in the county of Marathon and State of Wisconsin, have invented certain new and useful Improvements in Automatic Sand-Sifters and Mortar-Mia ers, of which the following is a specification.

This invention relates to inortar-mixing,and pertains especially to a machine for automatically sifting sand into and mixing it with other mortar-making elements.

The object of the invention is to provide a combined sand-sifter and mortar-mixer A of such novel and peculiar construction and arrangement of parts that the rotary motion of the mortar-mixing'shaft will impart to the sifter a vibratory motion perpendicular to the said shaft.

A further object of the invention is to provide a mortar-mixer with a vibrating screen positioned partially over the mixing vessel and having a sifted-sand chute discharging into the vessel under the screen and to provide a peculiar arrangement of arms upon the IIllX- ing-shaft.

A still further object of the invention is to provide a mortar-mixer with a sifter positioned, partly over the mortar vessel and having a'chute extending thereunder from the discharge end of the sifter and to provide the said chute with a pitman to impart a vibratory motion to the sifter. at right angles to the vessel.

Other objects, advantages, and improved results are attainable under the invention, as will 7 be disclosed in the specification to follow.

In the accompanying drawings, forming part of. this application, Figure 1 is a top plan view. Fig. 2isa section on the linew '00, Fig. 3. Fig. 3 is a rear end view. Fig. 4C is a detail sectional View of the mortar vessel, showing the mixing-shaftin elevation. Fig. 5 is a top view of the mixing vessel'and its shaft. Fig. 6 is a side elevation of a modification. The same numeral references denote the same parts throughout the several views of the drawings.

The machine is preferably portable and carries its own driving power. such as an electric or g'asolene engine, and the bed 1 of the machine haswheels 2 and a suitable tongue 3 for drawing it, and it is used as a distributing repository for mixed mortar. One end of the bed is provided with a platform 4: and vertical standards 5, having cross-braces 6 and 7.

The cylindrical mixing vessel 9 is secured upon the platform 4, and it has a receivingchute 10 and a discl'iarge-door 11, operated by ahandlever 12, and upon its interior are two sets of parallel bars 13, one setprojecting toward the other inwardly from the sides of the vessel and terminating near the center thereof, with an interval. between the ends of the a seat at the bottomof the cylinder and rotates in bearings 16 on the braces 6 and 7. The said shaft 1 1, which extends between the ends of the opposing sets of bars 13, is provided with two sets of spirally-arranged radial arms '17; revolved in the space between the bars. The shaft 1 is preferably driven by a horizontal shaft '18, having a pinion 19 meshing with a gear 20 on the shaft '14 and provided with a pulley 21, having a suitable belt connection to an engine adapted to be carried on the front end of the bed 1.

A crank-shaft 22 is journaled in arms 23 on the vessel 9 and has a pitman 24:, connected to the sand-sifterv 22, and sprocket-wheels 25 and 26 on the shafts 18 and 22, respectively, and a sprocket-chain 27 imparts motion to the latter shaft.

The sand-sifter has a screen 28, to the outer end of which is secured one end of a chute 29, which inclines under the screen and terminates short of the inner end of the screen, so

as to allow this screen end to sift direct into. I

the mixing vessel, while the remainder of the screen sifts onto the chute. which discharges into the vessel. The sifter is supported by 6 of the drawings, a pitman-shaft 34 is hung from and journaled in a hanger 35, projecting laterally from the top of the machine, and the shaft 36 has a lower journal-bearing 37 and is provided with a sprocket-wheel 38 and an eccentric disk 39, to which is pivotally and eecentrically connected one end of a pitman &O. A sprocket-chain 41 from a sprocketwheel 42 on the shaft 36 to the sprocket 38 drives the shaft 3 Guides 43 on the under side of the chute 4A slide through the side of the vessel 45 or in bearings on the top edge of the vessel, so as to permit a vibratory movement of the sifter at right angles to the shafts 34: and 36 and to prevent lateral movement of the sifter. To the inner end of the sifterchute is pivotally coupled the other end of the pitman 40. i

It will be seen that this sifter may be withdrawn from the vessel by simply uncoupling the pitman from the chute and allowing the sifter to drop down and be folded up against the vessel, as shown in the drawings. This will put the sifter out of action and permit the mixer to be operated independently. WVith the sifter in such folded position the machine is in more compact form for transportation, and the screen is protected from accidental injury.

It will be observed that the handle of the door on the mixing vessel follows the curvature of the vessel, so that the handle may not interfere with the removal of mortar from the bed or the treatment thereof on the bed.

It is obvious that the mixer cannot be revolved without revolving the pitman-shaft, Which imparts a vibratory motion to the sifter, so that a continuous supply of sand is furnished during the operation of the mixer, and that the vibratory motion of the sifter will vary according to the speed of the mixing-shaft.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a mortar-mixer having a projecting platform, projections extending from the platform, a cylindrical mixing vessel secured upon the said platform, a vertical mixing-shaft having a gear, and a horizontal shafthaving a pinion meshing with the said gear and provided with a sprocketwhcel, of a sifter overhanging the vessel, legs pivoted to the bottom of the sifter and journaled on the said projections, a crank-shaft journaled on the said vessel, a pitman connecting the sifter with the crank-shaft, and the sprocket-chain for driving the crank-shaft.

2. In a n'iortar-mixer, the combination with a portable bed having a rear platform extension, projections extendingfrom the platform, a vertically-disposed mixing vessel secured upon the platform and adapted to discharge onto the said bed, a vertical mixing-shaft in the vessel and provided with a gear, a horizontal shaft having a pinion meshing with the said gear and provided with a driving-pulley, and a sprocket-wheel on the horizontal shaft, of asifteroverhangingthe vessel, legs pivoted to the bottom of the sifter and diverging downwardly and having their bearings on the said projections, a crank-shaft journaled on the vessel, and a pitman working between the legs and connecting the sifter with the crankshaft.

3. In a portable mortar-mixer, the combination with the bed having wheels, aplatform overhanging the bed and projecting from the rear of the bed, projections extending from the platform and provided with bearings, a vertically-disposed mixing vessel secured to the platform and discharging onto the said bed, a vertical mixing-shaft working in the vessel and having a gear, a horizontal shaft having a pinion meshing with the gear at right angles to the mixing-shaft and provided with a driving-pulley, and a sprocket-wheel on the horizontal shaft, of a sifter overhanging the vessel, legs pivoted centrally to the bottom of the sifter and terminating in said. bearings, a crank-shaft journaled on the vessel, and

' having a sprocket-wheel, and a chain for driving the cranleshaft.

In witness whereof we hereunto set our hands in the presence of two witnesses.

PAUL B. QUADE. AUGUS" (l. QUADE. Witnesses:

FRED F. DAMON, GEO. S. JouNs'roN. 

